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(E)-4-Amino-N'-(5-bromo-2-hy-droxy-benzyl-idene)benzohydrazide mono-hydrate.

ABSTRACT: In t the title compound, C(14)H(12)BrN(3)O(2). H(2)O, the conformation of the C=N double bond in the hydrazide Schiff base mol-ecule is E. The dihedral angle between the benzene rings is 48.01 (11) °. An intra-molecular O-H⋯N hydrogen bond makes an S(6) ring motif. In the crystal, mol-ecules are linked through N-H⋯O (bifurcated acceptor) and O-H⋯O hydrogen bonds, forming two-dimensional networks lying parallel to (100).

SUBMITTER: Kargar H

PROVIDER: S-EPMC3393931 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N'-(5-Bromo-2-hy-droxy-benzyl-idene)-3-nitro-benzohydrazide methanol mono-solvate.

Project description:In the title compound, C(14)H(10)BrN(3)O(4)·CH(4)O, the dihedral angle between the two benzene rings in the hydrazone mol-ecule is 5.8?(3)° and an intra-molecular O-H?N hydrogen bond generates an S(6) ring motif. An O-H?O hydrogen bond occurs between the hydrazone mol-ecule and the methanol solvent mol-ecule. In the crystal, the components are linked by inter-molecular N-H?O hydrogen bonds, forming chains along the a axis.

| S-EPMC3247402 | biostudies-literature

(E)-N'-(5-Bromo-2-hy-droxy-benzyl-idene)-4-(dimethyl-amino)-benzohydrazide.

Project description:The title compound, C(16)H(16)BrN(3)O(2), crystallized with two independent molcules in the asymmetric unit. Each mol-ecule has an E conformation about the C=N bond and the dihedral angles between the benzene rings are 30.5?(3) and 28.7?(3)°. In each mol-ecule, there is an O-H?N hydrogen bond and the two mol-ecules are linked by an N-H?O hydrogen bond. In the crystal, mol-ecules are further linked via N-H?O hydrogen bonds into chains propagating along [001].

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N'-(5-Bromo-2-hy-droxy-benzyl-idene)-4-methyl-benzohydrazide.

Project description:The mol-ecule of the title compound, C(15)H(13)BrN(2)O(2), displays an E conformation with respect to the C=N double bond and the dihedral angle between the planes of the benzene rings is 3.1?(2)°. An intra-molecular O-H?N inter-action generates an S(6) ring. In the crystal, mol-ecules are linked by N-H?O hydrogen bonds, forming C(4) chains along the c-axis direction.

| S-EPMC3247477 | biostudies-literature

(E)-N'-(5-Bromo-2-hy-droxy-benzyl-idene)-3,5-dihy-droxy-benzohydrazide monohydrate.

Project description:The Schiff base mol-ecule in the title compound, C(14)H(11)BrN(2)O(4)·H(2)O, is almost planar with an r.m.s. deviation for the non-H atoms of 0.16?Å. In the crystal structure, the Schiff base mol-ecules and the water mol-ecules are linked together by inter-molecular N-H?O and O-H?O hydrogen bonds, leading to layers parallel to the bc plane. An intra-molecular O-H?N hydrogen bond involving the imine N atom and a hy-droxy substituent is also observed.

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(E)-N'-(5-Bromo-2-hy-droxy-benzyl-idene)-3-methyl-benzohydrazide.

Project description:In the title mol-ecule, C(15)H(13)BrN(2)O(2), an intra-molecular O-H?N hydrogen bond influences the mol-ecular conformation; the two benzene rings form a dihedral angle of 13.6?(3)°. In the crystal, inter-molecular N-H?O hydrogen bonds link the mol-ecules into chains along the a axis and weak inter-molecular C-H?O hydrogen bonds further link these chains into layers parallel to the ac plane.

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N'-[(Z)-4-(Dimethyl-amino)benzyl-idene]-4-nitro-benzohydrazide mono-hydrate.

Project description:In the asymmetric unit of the title compound, C(16)H(16)N(4)O(3)·H(2)O, there are two symmetry-independent hydrazide mol-ecules with almost identical geometries, and two independent water mol-ecules. The dihedral angles between the two benzene rings in the two hydrazide mol-ecules are 0.11?(5) and 0.77?(5)°. In one mol-ecule, an intra-molecular C-H?O hydrogen bond generates a ring of graph-set motif S(5). Inter-molecular N-H?O, O-H?O, O-H?N and C-H?O hydrogen bonds and ?-? stacking inter-actions between the benzene rings [centroid-centroid distances in the range 3.5021?(6)-3.6403?(6)?Å] are observed, together with O?O [2.7226?(11)?Å], O?N [2.7072?(10)?Å] and N?O [2.7072?(10)-2.8582?(12)?Å] short contacts. The hydrazine mol-ecules are stacked along the b axis and adjacent mol-ecules are linked by water mol-ecules.

| S-EPMC2959418 | biostudies-literature

(E)-N'-(5-Bromo-2-hy-droxy-3-meth-oxy-benzyl-idene)-2-hy-droxy-benzohydrazide monohydrate.

Project description:The organic molecule of the title hydrate, C(15)H(13)BrN(2)O(4)·H(2)O, is roughly planar, with a mean deviation of 0.0939?(2)?Å. The dihedral angle between the two aromatic rings is 8.2?(3)°. Intra-molecular O-H?N and O-H?O hydrogen bonds are observed. In the crystal, N-H?O(water) and O(water)-H?O hydrogen bonds lead to a three-dimensional network.

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N'-(5-Bromo-2-hy-droxy-benzyl-idene)-4-nitro-benzohydrazide methanol monosolvate.

Project description:In the title compound, C(14)H(10)BrN(3)O(4)·CH(4)O, the benzohydrazide mol-ecule is nearly planar [maximum deviation = 0.110?(2)?Å]. The mean planes of the two benzene rings make a dihedral angle of 8.4?(3)°. In the benzohydrazide mol-ecule, there is an intra-molecular O-H?N hydrogen bond and the NH group is hydrogen bonded to the methanol solvent mol-ecule. In the crystal, inter-molecular O-H?O hydrogen bonds involving the methanol solvent mol-ecule link the benzohydrazide mol-ecules to form chains which propagate along the a axis.

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(E)-N'-(5-Bromo-2-hy-droxy-benzyl-idene)-2-meth-oxy-benzohydrazide.

Project description:In the title compound, C(15)H(13)BrN(2)O(3), the mol-ecule adopts an E configuration about the C=N bond and the two benzene rings form a dihedral angle of 20.3?(3)°. In the mol-ecule, there are two intra-molecular hydrogen bonds, viz. O-H?N and N-H?O, involving the hy-droxy substituent, the meth-oxy O atom and the hydrazide NH group and N atom. In the crystal structure, mol-ecules are linked through N-H?O hydrogen bonds, forming chains propagating along [010].

| S-EPMC3006725 | biostudies-literature

(E)-N'-(5-Bromo-2-hy-droxy-benzyl-idene)-4-hy-droxy-3-meth-oxy-benzohydrazide methanol solvate.

Project description:In the title compound, C(15)H(13)BrN(2)O(4)·CH(4)O, the two benzene rings form a dihedral angle of 3.2 (2)°. An intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, mol-ecules are linked through O-H⋯O and N-H⋯O hydrogen bonds, forming a two-dimensional network parallel to (10).

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